<!DOCTYPE html>
<script src="../../resources/js-test.js"></script>
<body>
<script>
window.selection = getSelection();

shouldNotThrow('selection.collapse(document.body, 0)');
shouldNotThrow('selection.collapse(null, 0)');
shouldNotThrow('selection.collapse(undefined, 0)');
shouldThrow('selection.collapse(0, 0)');
shouldThrow('selection.collapse(window, 0)');

shouldNotThrow('selection.setPosition(document.body, 0)');
shouldNotThrow('selection.setPosition(null, 0)');
shouldNotThrow('selection.setPosition(undefined, 0)');
shouldThrow('selection.setPosition(0, 0)');
shouldThrow('selection.setPosition(window, 0)');

shouldNotThrow('selection.setBaseAndExtent(document.body, 0, document.body, 0)');
shouldNotThrow('selection.setBaseAndExtent(null, 0, null, 0)');
shouldNotThrow('selection.setBaseAndExtent(undefined, 0, undefined, 0)');
shouldThrow('selection.setBaseAndExtent(0, 0, null, 0)');
shouldThrow('selection.setBaseAndExtent(null, 0, 0, 0)');
shouldThrow('selection.setBaseAndExtent(window, 0, null, 0)');
shouldThrow('selection.setBaseAndExtent(null, 0, window, 0)');
</script>
